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O BORING NO. UST-1 GE ofd <br /> Environmental LOG F PA �.. <br /> Science dt PROJECT NO: 02-531-003 DATE: 9/19/90 THROUGH <br /> 9/21/90 <br /> A cMcom co�urc <br /> Engineering. Inc. CLIENT: DELTA TRUCK SALES REF. ELEV.: <br /> 597 Center Avenue, Suite 350 SITE LOCATION: STOCKTON. CA <br /> Martinez, California 94553 METHOD: HOLLOW <br /> 415--372-3637 BORING LOCATION SEE MAP STEM AUGER <br /> UST-1 WELL <br /> .. o HOLE DIA. 10 1/4° zo <br /> E <br /> v tz a +� = ala DRILLER:EXCEL TECH. U <br /> \ %_. <br /> g o o Wa � 4 W ww LOGGED BY: OLIVER CHRISTEN <br /> En <br /> o m C1. �^ zg SUPERVISOR: SUSAN WICKHAM. RG. 3851 o <br /> DESCRIPTION 3 U <br /> 60 60 61 RING O ML CLAYEY SILT to SILTY CLAY, slmIlar to above, but less <br /> 6o PT and and more clay; less hydrocarbon odor <br /> AS ABOVE, with strong odor and staining <br /> 70 RING o <br /> 80 35 � 70 F..I. ML SANDY SILT. tan/brawn. loose, slight odor <br /> 88 46 RING <br /> ISL AS ABOVE, mottled, slightly moist <br /> s <br /> 80 RING <br /> 80 23 80 ML AS ABOVE, moist <br /> _ 52 i3 RING ® SVtiI SAND, brown. moll--graded, fine--grained, loose, wat, <br /> 85 FT hydrocarbon odor <br /> 90- <br /> 82 0 NO RING ML Ig SILT, brown, slightly moist, no odor, modlum loose <br /> s <br /> _ Y <br /> a <br /> 10 SWy SAND, brown. well—graded, flowing, saturated. passible <br /> slight hydrocarbon odor <br /> Total Depth: 103 FT <br /> * Soil sample submitted for laboratory analysis <br /> ii WELL CONSTRUCTION <br /> 103-83 ft. 4* slotted (0 02 In.) PVC; 83--0 ft, 47 blank <br /> 110 PVC; locking well box. 103-73 ft, #2/12 Monterey sand; <br /> 73-71 ft, bentonite pellets; 71--0 ft, grout. <br />